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Arctic Leaf

Is butanol the next big thing in biofuels?

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Fuel Freedom recently learned about a man named David Ramey who drove his 1992 Buick Park Avenue from Blacklick, Ohio to San Diego using 100 percent butanol, without making any adjustments to his engine.

Ordinarily this wouldn’t be big news. But with the EPA now considering cutbacks in the 2014 biofuels mandate, some producers of ethanol are starting to turn to butanol as a way of getting around the limitations of the 10 percent “blend wall” that is threatening to limit ethanol consumption. This could be another breakthrough in our efforts to limit foreign oil.

Butanol is the alcohol form of butane gas, which has four carbons. Because it has a longer hydrocarbon chain, butane is fairly non-polar and more similar to gasoline than either methanol or ethanol. The fuel has been demonstrated to work in gasoline engines without any modification to the fuel chain or software.

Since the 1950s, most butanol in the United States has been manufactured from fossil fuels. But butanol can also be produced by fermentation, and that’s where another opportunity for reducing our dependence on fossil fuels exists.

The key is a bacterial strain called Clostridium acetobutylicum, also named the Weizmann organism for pioneering biological researcher Chaim Weizmann, who first used it to produce acetone from starch in 1916. The main use for the acetone was producing Cordite for gunpowder, but the butanol, a byproduct, eventually became more important.

Once set loose on almost any substratum, Clostridium acetobutylicum will produce significant amounts of butanol. Anything used to produce ethanol — sugar beets, sugar cane, corn grain, wheat and cassava, plus non-food crops such as switchgrass and guayule and even agricultural byproducts such as bagasse, straw and corn stalks — can all be turned into butanol. (Of course, not all of these are economical yet.)

Given the modern-day techniques of genetic engineering, researchers are now hard at work trying to improve the biological process. In 2011, scientists at Tulane University announced they had discovered a new strain of Clostridium that can convert almost any form of cellulose into butanol and is the only known bacterium that can do it in the presence of oxygen. They discovered this new bacterium in, of all places, the fecal matter of the plains zebra in the New Orleans Zoo.

DuPont and BP are planning to make butanol the first product of their joint effort to develop next-generation biofuels. In Europe, the Swiss company Butalco is developing genetically modified yeasts from the production of biobutanol from cellulosic material. Gourmet Butanol, a U.S. company, is developing a process that utilizes fungi for the same purpose. Almost every month, plans for a new butanol production plant are announced somewhere in the world. Many refineries that formerly produced bioethanol are now being retrofitted to produce biobutanol instead. DuPont says the conversion is very easy.

What are the possible drawbacks? Well, to match the combustion characteristics of gasoline, butanol will require slight fuel-flow increases, although not as great as those required for ethanol and methanol. Butanol also may not be compatible with some fuel system components. It can also create slight gas-gauge misreadings.

While ethanol and methanol have lower energy density than butanol, both have a higher octane rating. This means butanol would not be able to function as an octane-boosting additive, as ethanol and methanol are now doing. There have been proposals; however, the proposals are for a fuel that is 85 percent ethanol and 15 percent butanol (E85B), which eliminate the fossil fuels from ethanol mixes altogether.

The only other objection that has been raised is that consumers may object to butanol’s banana-like smell. Other than that, the only problem is cost. Production of butanol from a given substratum of organic material is slightly lower than ethanol, although the increased energy content more than makes up for the difference.

Ironically, the EPA’s decision to cut back on the biofuels mandate for 2014 is now driving some refiners to convert to butanol, since its greater energy density will help it overcome the 10 percent “blend wall.”

“Michael McAdams, president of the Advanced Biofuels Association, an industry group, said butanol was a ‘drop-in’ fuel, able to be used with existing gasoline pipelines and other equipment because it does not have a tendency to take up water, as ethanol does,” The New York Times reported last October. “‘It’s more fungible in the existing infrastructure,’ he said. ‘You could blend it with gasoline and put it in a pipeline — no problem.’

“Butanol would also help producers get around the so-called blend wall, Mr. McAdams said…With the 10 percent limitation, ‘you don’t have enough gasoline to put the ethanol in,’ he said. ‘You don’t have that problem with butanol.’”

So here’s to butanol. It will be yet another big step in reducing our dependence in foreign fuels.

Arctic Leaf

What Happened to Saudization? Bipolar Fuel Projections!

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Just a few short months ago, newspapers, led by the WSJ, trumpeted, many on their front pages, the Saudization of America and the end of America’s and OECD’s reliance on Middle East oil. Do you remember?   Well maybe you don’t have to– at least after 2025. The IEA’s World Energy Outlook for 2013, published Nov 12, indicates that the “Middle East, the only large source of low-cost oil, remains at the center of the longer-term oil outlook.” Within about 10 years or so, it will provide the largest share of the world’s expanded oil supply.

I realize the fragility of projections and have in the past criticized the IEA and the EIA and other makers of global energy projections. At times, projection makers are more artists than scientists. The good artists, sometimes, come close to what actually happens. The not so good ones either get lucky or appear to mute their “over or under” reality numbers. They either provide ranges, permitting them to say they were right in the future, or they complain, perhaps over a good bottle of wine, about the complexity of the variables.

I believe it is important to read the IEA report because it lends a bit of skepticism to the idea that America and its friends are entering the golden era of energy abundance. Indeed, The New York Times on Nov 13 ran the IEA story under the headline, “Shale’s Effect on Oil Supply Is Forecast to Be Brief.”

Here is what the IEA said in their Executive Summary:

“The role of OPEC countries in quenching the world’s thirst for oil is reduced temporarily over the next 10 years by rising output from the U.S., from oil sands in Canada, from deep water production in Brazil and from natural gas liquids from all around the world.  However, by mid-2020, non-OPEC production starts to fall back and countries in the Middle East provide most of the increase in global supply. Overall national oil companies and their host governments control some 80 percent of the world’s proven-plus-probable oil reserves.”

America’s likely surplus combined with a slowdown in the increase of demand will not affect costs of oil and gasoline in a major way.  Escalating demand for both will be reflected in Asia and will place a floor under prices. America’s oil companies function in a global market and are not governed to a great extent by the laws of supply and demand in this country.  They will sell to the highest bidder worldwide.

IEA indicates that “the need to compensate for declining output from existing oil fields is the major driver for upstream oil investment to 2035…conventional crude output from existing fields is set to fall by more than 40 mb/d by 2035.Of the 790 billion barrels of total production required to meet our projections for demand to 2035, more than half is needed just to offset declining production. According to the NY Times, IEA conclusions are generally shared by the EIA; that is, today’s rapid oil production from shale will continue for a relatively short time and then slow rapidly. IEA indicated the slowdown will occur in the mid-twenties, EIA by the late teens.

IEA’s and EIA’s analysis should not generate a bipolar response or create a need for a regimen of pills to cure projection related manic depression. It’s only a projection. Take a deep breath and count to ten.  Next year it will likely change because of “complex variables ” including but not limited to changing world demand, Middle East tension, new technology and the use of alternative fuels.

Until we get better at projection, let’s applaud IEA and EIA’s professionals.  At a minimum, they are honestly and artistically responding to lots of unknowns.  Paraphrasing the comedian Ilka Chase (and changing a word or two) projectionist’s minds are cleaner because they change them so often…

Just kidding!

Their efforts should at least reinforce the need to think through transportation fuel strategies and act with all reasonable speed on what I would consider, at least, low hanging fruit. For example, a coordinated campaign by the public, nonprofit and private sector to encourage the federal government to approve methanol as a fuel would be a good first step.  Federal acquiescence, if combined with simultaneous certification of low cost kits to convert existing vehicles to flex fuel cars could provide the framework for an effective transitional fuel strategy.

It, likely, will take from five to ten years before electric and or hydrogen powered vehicles will be able to reach the budgets and driving needs of most low, and moderate income Americans.  Even when renewable fuel powered new vehicles reach a mass market, the technology will not be able to change the gasoline dependent older vehicles. In this context, alternative transitional fuels could, with the addition of an increased number of conveniently located fuel stations and stimulated by new demand, offer competition to oil company restricted gas-only stations and consumers a choice of fuels.  America would be better off economically and environmentally.  Consumers would secure a more predictable, probably lower price for fuel at competitive pumps and charging stations.  The nation would be less dependent on imported oil.

Arctic Leaf

The New York Times and Natural Gas- Is it the Moment?

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The venerable Gray Lady, the NY Times, has in the recent past treated the possible use of natural gas and its derivatives (methanol and ethanol) as transportation fuels warily. Their primary focus has seemed to be on the environmental problems and economic opportunities related to fracking and the increased production of natural gas. Rarely did the Times cover or note in its editorials the increasing acceptance of natural gas, methanol and ethanol as a fuel to power vehicles. The importance of alternative fuels as part of national energy and environmental policies has not been granted significant visibility in the Times. The Times is still my favorite read over a cup of coffee.

But, surprise! Borrowing and taking liberty to amend the lyrics from the musical Jekyll and Hyde,   “this may almost be the moment…when The New York Times begins to send many of its doubts and demons concerning alternative transportation fuels on their way… this could be the beginning. The momentum and the moment may be coming together soon in rhyme.”

Paul Stenquist, a respected, frequent writer for the Times automobile section, wrote an Oct. 29 article titled, Natural Gas Waits for its Moment. The content of the piece was, in reality, not as ambiguous or speculative. Read it!  According to Stenquist, natural gas has arrived and this is its moment, or at least its soon-to-be moment. Sure there are problems to overcome, but to Stenquist, they seem relatively puny given where he thinks we are, and where he suggests we can be soon.

Stenquist opens his upbeat piece by indicating that “cars and trucks powered by natural gas make up a significant portion of the vehicle fleet in many parts of the world (Iran, Argentina, Italy, Brazil, and Germany).”  After noting the almost 2,000 natural gas stations in Argentina, he asks, “Is America next?”

Based on Department of Energy (DOE) information, Steinquist indicates that natural gas is about $1.50 cheaper than gasoline and diesel fuels for the same mileage, and that because natural gas burns clean, it requires less oil changes, and vehicle exhaust systems last longer.

Sure, the author notes that the initial cost of natural gas vehicles are significantly higher now than gasoline vehicles. But based on an apparent positive interview with a fleet manager from Ford, he indicates that increased sales or leasing volume could bring the vehicle price comparable to today’s conventional vehicles. The key issue Stenquist does not address, is when this will happen, and how long will it take?  But still he and his Ford colleague seem optimistic– perhaps a bit too optimistic, unless Detroit pulls a Steve Jobs; that is, just as Jobs did with the  iPhone, convince the public through marketing and technological innovation that cheaper cleaner natural gas vehicles are a “must” for consumers.

But wait, there’s more!  Stenquist, quoting from the Energy Department’s website, suggests that the environmental benefits of natural gas as a fuel appear to be immediate and important. Succinctly, natural gas vehicles have a much smaller carbon footprint than gasoline or diesel.

What remains, then, for the nation to benefit in a major way from use of natural gas as an alternative fuel?  Well for one, reducing carbon leakage during natural gas production and distribution. Progress is being made. Stopping or cutting back leakage has become a priority for both involved companies, and federal as well as state regulatory authorities.

Second, both car companies and the government acknowledge that using compressed natural gas in a conventional engine would result in degrading engine performance. However, retrofitting engines to use natural gas would increase the octane advantage of natural gas and lessen the density advantage of gasoline-reducing performance issues. Fully designed natural gas cars are still relatively rare and are, at this moment, significantly more costly than conventional cars. But with increased demand, as noted earlier, the costs would likely come down and make household purchase decisions easier. Interestingly, Governor Hickenlooper of Colorado(D) and Governor Fallin of Oklahoma(R) have put together a 22 state coalition. The group has committed to purchasing new natural gas cars to replace old cars in their respective fleets. Detroit has committed in turn to work on developing a less expensive natural gas car, given the market pool or demand created by the states. This effort deserves watching and will, if successful, hopefully, provide a path to cheaper natural gas vehicles for consumers.

Stenquist, correctly, points to the lack of natural gas fuel stations as a key obstacle to increased popularity of natural gas. But he is optimistic that technology now in place (or soon to be in place) will be able to link available natural gas pipelines to in home fuel machines. I, also, would hope that these fuel stations would be placed in parking garages and that they would be much cheaper than currently existing home refueling equipment.

I suspect that the natural gas movement will require more than a few moments; that is, it may take a bit longer to gain traction than implicit in Stenquist’s piece. But it’s nice to see a journalist link natural gas to transportation fuel in such an aggressive way as Stenquist. Now if the Times could only follow in the content of its editorial and op-ed pages.

It is hard to be critical of Stenquist’s piece since it’s almost a first for the NY Times. However, I am puzzled by the absence of any discussion of natural gas based ethanol and methanol as alternative fuels in his article. Both, likely, would be cheaper per gallon and per miles traveled than gasoline. Both would record more environmental benefits than gasoline, and both, if they are accepted in the market, would reduce dependency on imported oil. Perhaps most significantly, both, assuming appropriate government approvals, could be used almost immediately to fuel existing vehicles with relatively simple and cheap engine conversion kits. Think of it!  If we could add the trifecta: natural gas, ethanol and methanol –to fuel stations throughout America, it would provide needed competition to gasoline. Consumers would benefit by having access to lower cost fuel. The nation would benefit from improved environmental and Greenhouse Gas (GHG) conditions. America’s security and economy would be enhanced significantly. It would be a major win for the public interest and for America and Americans.

Arctic Leaf

Can the Marcellus give birth to CNG vehicles?

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What if America had so much natural gas it didn’t know what to do with it?

Right now that’s the situation in the Marcellus Shale, the vast formation that underlies nearly all of Pennsylvania. There just isn’t enough demand for what’s available. And the same situation could be facing the entire United States in just a few years, according to speakers at the 2013 Natural Gas Utilization Conference held at the Omni William Penn Hotel in downtown Pittsburgh last week.

“Today there are 800 shut in wells in the Marcellus, waiting for an increase in price and improvements in infrastructure,” said Justin Carlson, manager of energy analytics at Bentek Energy of Colorado told the gathering. “By 2017, demand could dip below supply for the entire United States. We’re not doing enough to support growth. The market needs more users.”

Where could you find those new consumers? Virtually everyone agrees that there’s one market that is begging for greater natural gas use – the transportation sector.

Some companies are already looking for ways to do it. Last year Consol Energy Inc. and Praxair, Inc., a Connecticut-based manufacturer of industrial gases, was preparing to build a $2 billion plant to convert gas from the Marcellus into gasoline and diesel blends for use in cars and trucks. In the end, however, the economics didn’t quite work. “The project would have generated a positive rate of return but not the 12% that investors are looking for,” said Dante Bonaquist, chief scientist and corporation fellow at Praxair, who spoke at the conference. “We had to give it up.”

So absent a liquids option, most gas producers are opting for another technology – compressed natural gas. Leading the pack has been Chesapeake Energy, which set a goal to convert its entire fleet of vehicles to CNG by 2015. At the current pace it will hit the 80% mark in 2014. Last year Chesapeake’s Peake Fuel Solutions affiliate also partnered with GE to launch “CNG In A Box,” a package that compresses natural gas from a pipeline into CNG fueling stations so that small and large retailers can become vendors of natural gas. The package was introduced at the National Association of Convenience Stores 2012 annual convention.

“The 8-by-10-foot container is easy to ship and its modular design allows for plug-and-play,” said Bob Jarvis, spokesman for Chesapeake. “It makes pay-at-the-pump a familiar and secure experience.” GE already has a manufacturing plant up and running in Houston. On Sept. 17 it announced a memorandum of understanding with China’s Endurance Industries to deliver 260 CNGs In A Box to fuel China’s rapidly growing conversion to natural gas vehicles.

Last week, however, Chesapeake was forced to disband its seven-member Natural Gas Vehicle Task Force as part of an austerity-driven reorganization. But other companies may pick up the slack. “Chesapeake has been an important player in growing the natural gas vehicle market, but other companies and organizations have taken on that role now,” said Rich Kolodziej, president of advocacy group Natural Gas Vehicles for America.

Range Resources, another major player in the Marcellus, is also making an all-out effort to promote CNG vehicles. It recently closed a deal with GM to buy an entire fleet of trucks for its Pennsylvania operations. The company expects to save 40-50% of vehicle operating costs by switching from gasoline. With 180 trucks in the region, each carrying a 17-gallon tank, Range will save $3,000 each time its fleet refuels.

But is compressed natural gas the best way to go? The technology involves high-pressure tanks, both in storage and in your car or truck and involves a whole new infrastructure. Converting natural gas into methanol – a fairly simple process – would allow us to use the current infrastructure with only a few minor adjustments. Existing vehicles can be modified to use methanol for only a few hundred dollars and flex-fuel vehicles could use either methanol or traditional gasoline.

Methanol works better from the supply side as well. “The economics of methanol would have been more attractive,” said Bonaquist, of the Praxair-Consol Energy proposal that didn’t make it off the drawing boards. “The conversion and purification sections of the plant would have been less complex. It would have been particularly advantageous for smaller scale production.”

So what’s the problem? Well, unfortunately, putting methanol in your car hasn’t yet been approved by the Environmental Protection Agency. That makes it illegal. If the regulations could be changed, methanol would become a much easier route for moving the nation’s looming gas surpluses into the transportation sector. There could hardly be a more promising way of freeing ourselves from dependence on foreign oil.